As dropper seatposts have evolved, one issue that’s been consistent is binding when a seatpost collar is over tightened. Many modern posts have tried to address this with more robust outer cylinders or tricky internals, but the fact remains, if you over tighten your collar, things may not work as well as they should. Eightpins, in an apparent collaboration with Syntace, will be introducing a completely different take on it at Eurobike. Judging by the fuzzed out photo of it, it could involve frame integration, or possible an expanding system that locks the post into place by wedging against the inside of the seat tube. We’ll be there to cover it, but take some guesses in the comments…
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27 Comments
The seat tube will be the outer and the seat post will just drop into it.
http://mombat.org/MOMBAT/BikeHistoryPages/Images/HiteRite%20AD%201985%205M.jpg
Literally building the outer part of the post into the frame would bring a lot of benefits; bigger top part of post so could be lighter, seals would keep water out of the entire frame, and everything else could be bigger making it easier to make it stronger and more durable…. however would need more stroke and some end stops to cover all rider heights/tastes and if something went wrong you’d be without the bike while it was being fixed rather than just sticking another post in.